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| Number | Title | Issue Date |
| 8171638 | Process for providing improved electrical properties on a roll for use in electrophotography A method and system for producing rolls for electrophotography are provided. The rolls can be rotated and shifted laterally during an oxidative baking process to produce finished rolls having improved electrical and printing characteristics. The oxidation of the rol... | 05/08/2012 |
| 8087170 | Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus A method for manufacturing a developing agent carrier of a hollow or solid cylindrical shape having an outer peripheral surface and an irregularity section formed on the outer peripheral surface to carry a developing agent is provided. The method comprises a step of... | 01/03/2012 |
| 7934316 | Charging roller, process cartridge and image forming apparatus An object of the present invention is to provide a charging roller (i) which includes a rubber member whose surface is subjected to a hardening treatment using a solvent containing at least an isocyanate compound and (ii) which can prevent leakage of an ionic conduc... | 05/03/2011 |
| 7891094 | Method of manufacturing a hollow body used in an image forming apparatus A method of manufacturing a hollow body having an external surface randomly provided with a large number of depressions is provided. The method includes providing the large number of depressions on the external surface of the hollow body. A profile curve of the exte... | 02/22/2011 |
| 7571542 | Aluminum sheet embossing roll A method of forming a roll for embossing aluminum sheet, and the associated roll, the method comprising subjecting a surface of a steel roll to at least the steps of, in order: blasting treatment, electrolytic treatment with 1,000 to 20,000 C/dm2 of elect... | 08/11/2009 |
| 7392586 | Sheet feed shaft A sheet feed shaft is provided wherein mutually opposed spike-shape projections are formed throughout the whole surface of a metallic rod. A rotational angle of a metallic rod (1) is controlled to form a plurality of spike-shape portions whose bristled... | 07/01/2008 |
| 7353605 | Method for producing a metallic core for use in cylinder sleeves for an electrophotographic process An improved method for producing a metallic core for use in the production of a blanket cylinder or an image cylinder sleeve for use in electrophotographic processes. The sleeves includes aluminum or other suitable metal, which is rendered more suitable for use as a... | 04/08/2008 |
| 7334336 | Method for producing a sleeved polymer member, an image cylinder or a blanket cylinder This invention relates to a method for producing a polymer sleeve including a polymer sleeve for use with an image cylinder or a blanket cylinder in an electrophotographic process so that the sleeve has a stretched length as mounted on the mandrel equal to a length ... | 02/26/2008 |
| 7325289 | High-performance ball and socket joint with low torques A process is provided for manufacturing a ball and socket joint that has a ball pivot (2) that is composed of a pivot pin (3) with an essentially spherical ball head (4) arranged or made integrally in one piece on one side. A bearing shell (5) i... | 02/05/2008 |
| 7261250 | Roller guide tape path A tape guide mechanism in a storage device is disclosed for defining an improved roller guide tape path. A cartridge reel is provided for supplying tape to a take-up reel. Multiple flanged guides are provided located remotely from the cartridge and take-up reels. A ... | 08/28/2007 |
| 7252344 | Multi-piece composite hub assembly for a bicycle A hub for a bicycle wheel having a hub body rotationally mounted on a central hollow shaft by means of bearings mounted on the shaft, the hollow shaft adapted to receive a quick release axle which projects beyond both ends of the axle. The shaft has three distinct p... | 08/07/2007 |
| 7229398 | Circular-shaped metal structure and method of fabricating the same A circular-shaped metal structure is fabricated by plastic-working and has a wall thickness in the range of 0.03 mm to 0.09 mm both inclusive. A film composed of one of (a) silicon and fluorocarbon resin and (b) copper is coated on a surface of the circular-shaped m... | 06/12/2007 |
| 7200935 | Work roll Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer ( | 04/10/2007 |
| 7181845 | Roller with integral bearing assembly mount and method for manufacturing same An improved conveyor roller (100) having a belt-engagement length (103) between a first end (101) and second end (102), and a necked-down portion (109) adjacent the second end, and a method of manufacturing such a roller are disclo... | 02/27/2007 |
| 7152322 | Toner supply roller A toner supply roller comprises a metallic core shaft and an electrically conductive elastic layer formed to surround the outer surface of the shaft. The conductive elastic layer is formed of open-cell polyurethane foam. The polyurethane foam is impregnated with an ... | 12/26/2006 |
| 7107681 | Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller A heating roller including a core of hollow cylinder form and wherein a thickness of the core is thicker in a center portion thereof than in both end portions thereof. Further, a heating device may have the heating roller, a fixing device may have the heating roller... | 09/19/2006 |
| 7018512 | Roll, in particular, calender roll A paper processing roll for use in a calender of a paper-making machine which during operation can be exposed to increased temperatures is provided with a heat-treated surface which is produced by hot-grinding or hot-balancing or both. ... | 03/28/2006 |
| 7007581 | Cutting mat for a rotary anvil A rotary anvil is outfitted with pins protruding from the base of an axially extending channel along the surface of the anvil. A cutting mat having a generally elongate body includes first and second locking members projecting from opposite axial ends thereof. The c... | 03/07/2006 |
| 7007384 | Developing roller and method of producing the same A method of producing a developing roller, includes providing a roller core having an electrically conductive layer provided on a circumferential surface thereof, applying a reaction mixture containing a fluorine-containing polyol, an isocyanate compound, and a reac... | 03/07/2006 |
| 6983540 | Method for manufacturing elastic cylindrical body and method for manufacturing elastic roll A liquid mixture containing a liquid polymeric material and a granular filler is injected into a mold (11) for centrifugal molding and subjected to centrifugal molding, thereby preparing a cylindrical body including a homogeneous dispersion layer (2) h... | 01/10/2006 |
| 6971174 | Method of manufacturing a caster roll The caster roll (10) is used in the manufacture of metal plate, strip, sheet, or foil. The caster roll (10) includes a cylindrical roll core (12) and at least one metal overlay (14) formed on the roll core (12). The at least one me... | 12/06/2005 |
| 6969061 | Roller element for hardcopy apparatus A printer or other hardcopy apparatus comprises a pinch system (20) comprising a pinch wheel (21) and a drive roller (23) in which the pinch wheel is arranged to contact a print media at locations which move continuously transversely of the dire... | 11/29/2005 |
| 6948247 | Method for forming a bearing race for a cylindrical bearing A cylindrical roller bearing or needle roller bearing for use with a rolling raceway surface is subjected to a carbonitriding treatment to produce a layer containing 30 to 80% retained austenite in the vicinity of its surface that contacts a carburized layer of a ro... | 09/27/2005 |
| 6932736 | Toroidal continuously variable transmission In a toroidal continuously variable transmission having a plurality of power rollers interposed between input and output disks under axial preload and using a tapered roller bearing as a power roller bearing, a radial load and a thrust load acting on an inner race a... | 08/23/2005 |
| 6918865 | Roll cover A paper machine roll cover surface layer has a mixture of an elastomeric material and between about 10 phr and about 24 phr UHMWPE particles. ... | 07/19/2005 |
| 6892455 | Stationary roller shaft formed of a material having a low inclusion content and high hardness An improved stationary roller shaft of a gear assembly for an air turbine starter is provided. The air turbine starter may be used to start a gas turbine engine, such as may be found in aircraft, ships and military vehicles. The stationary roller shaft is formed of ... | 05/17/2005 |
| 6884205 | Non-marking web conveyance roller A non-marking web conveyance roller has a generally irregular surface with a plurality of rounded up features that promotes superior venting of entrained air. The surface finish of the roller, formed by a thermal spray process, prevents the formation of impression a... | 04/26/2005 |
| 6785963 | Rotary die cutting cover A cover for a rotary die is centrifugally cast with multiple layers to substantially eliminate stress when the cover is cast in an arcuate shape for use in a die cutting system. A locking mechanism attached to ends of the cover is designed to be convenient to instal... | 09/07/2004 |
| 6783485 | Roll of a paper/boardmaking machine A roll for a paper or board machine is produced by forming a tubular roll blank by bending out of a planar sheet or by means of centrifugal casting. The roll blank is first coated with a material having a modulus of elasticity and a density lower than those of steel... | 08/31/2004 |
| 6739051 | Method for manufacturing a pressure roller A pressure roller for a fixing device is manufactured by extruding silicone rubber on a shaft, foaming the extruded silicone rubber, subjecting the foamed silicone rubber to primary and secondary heat treatments, polishing the heat-treated silicone rubber, and then ... | 05/25/2004 |
| 6709372 | Roller for metal strip transfer in a continuous annealing furnace Roller designated for the transfer of a metal strip within a continuous annealing furnace, consisting of a driving shaft encased in a collar which bears the strip, characterized in that at least the collar is manufactured of a composite material such as carbon-carbo... | 03/23/2004 |
| 6687999 | Method for manufacturing ink dispensing roller A construction of ink dispensing roller is described in which a porous ink metering layer extends around a peripheral surface of a porous ink reservoir. To prevent relative movement between the ink metering layer and the ink reservoir, the ink metering la... | 02/10/2004 |
| 6671958 | Method for producing a roll for a paper/boardmaking machine A roll for a paper or board machine is produced by forming a tubular roll blank by bending out of a planar sheet or by means of centrifugal casting. The roll blank is first coated with a material having a modulus of elasticity and a density lower than tho... | 01/06/2004 |
| 6651338 | Method for the production of a cylindrical embossing sheet In a method and an apparatus for the production of a cylindrical embossing sheet that is to be fixed on a rotating clamping cylinder for the manufacture of continuous webs having surface structures, such as holograms, cine-grams, exelgrams, for safety and... | 11/25/2003 |
| 6584688 | Processes for manufacture of a press jacket Process for manufacturing a roll press jacket, wherein the roll press jacket includes a hollow cylindrical sleeve made of an castable elastomeric material containing at least one crystallization component, the sleeve has an interior cylindrical surface an... | 07/01/2003 |
| 6539629 | Roller shaft on computer character-cutting device and method to manufacture the same A method for manufacturing a roller shaft of a computer character-cutting device and the roller shaft itself are disclosed, wherein, an engaging belt having on the surface thereof etched tooth grains is wrapped over the roller shaft, laser welding is proc... | 04/01/2003 |
| 6532661 | Sheet feed shaft, apparatus for manufacturing same and method for manufacturing same A sheet such as paper or a hard film can be fed accurately in an intended direction while positively holding the sheet merely by applying plastic processing to a peripheral surface of a metallic rod. A plurality of spike-like projections A, B risen at an obtus... | 03/18/2003 |
| 6523263 | Charge roller of developing device for image forming apparatus, method for fabricating the same and tool for fabricating charge roller A method of manufacturing a charge roller utilizes a foam rubber substance where epichlorohydrin oxide rubber and an acrylonitrile butadiene rubber are mixed at a ratio of 5:95, or utilizing a crosslinking rubber substance consisting of epichlorohydrin ox... | 02/25/2003 |
| 6508750 | Grooved tape guide A tape guide that includes multiple spaced grooves or a spiral groove in the surface of the hub to bleed air from between the surface of the hub and the tape. The distance between adjacent grooves or turns in the case of a spiral groove is 2.4 to 3.7 time... | 01/21/2003 |
| 6438841 | Device for holding fixing roller, method for manufacturing fixing roller, and image forming apparatus There is described a method for manufacturing fixing rollers and a roller body holding device utilized for manufacturing fixing rollers. The method includes steps of press-fitting flanges into a roller body, shaped in a hollow cylinder, from each of both ... | 08/27/2002 |
